Add comprehensive e2e test enhancements: visual regression, performance monitoring, mobile UX, and error boundary testing

Co-authored-by: 0xrinegade <[email protected]>

Author: Copilot

.github/workflows/comprehensive-e2e-testing.yml

@@ -12,6 +12,13 @@ This directory contains comprehensive end-to-end tests for the SVMSeek Wallet th
 - ✅ **Wallet Operations**: Send, receive, transaction history, balance checks
 - ✅ **Explorer Functionality**: Network statistics, transaction search, real blockchain data
 
+### Enhanced Test Suites (NEW)
+- ✅ **Visual Regression Testing**: Theme consistency, UI component validation, interactive states
+- ✅ **Advanced Performance Monitoring**: Core Web Vitals, memory management, network optimization
+- ✅ **Mobile UX Enhancement**: Touch interactions, responsive design, device compatibility
+- ✅ **Comprehensive Error Boundary Testing**: Error recovery, user experience during failures
+- ✅ **Cross-Device Accessibility**: Screen reader support, keyboard navigation, high contrast
+
 ### Theme & Language Support
 - ✅ **11 Themes**: E-Ink Grayscale, ASCII Terminal, Borland Blue, Paper White, Solarized Dark, Cyberpunk Pink, NY Times, Windows 95, Windows XP, macOS Aqua, Linux TUI
 - ✅ **11 Languages**: English, Spanish, Russian, German, Japanese, Greek, Chinese, Thai, Korean, Sanskrit, Esperanto
@@ -20,6 +27,7 @@ This directory contains comprehensive end-to-end tests for the SVMSeek Wallet th
 - ✅ **6 Viewport Sizes**: Mobile Portrait, Mobile Landscape, Tablet Portrait, Tablet Landscape, Desktop, Large Desktop
 - ✅ **Mobile-First**: Touch interactions, mobile navigation, gesture support
 - ✅ **Accessibility**: ARIA labels, keyboard navigation, screen reader support
+- ✅ **Enhanced Mobile UX**: Touch targets, safe area handling, virtual keyboard optimization
 
 ### Cross-Browser Compatibility
 - ✅ **Chromium**: Full crypto operations, all features
@@ -31,17 +39,22 @@ This directory contains comprehensive end-to-end tests for the SVMSeek Wallet th
 - ✅ **Network Failure Handling**: Offline scenarios, connection issues
 - ✅ **Error Boundaries**: Graceful error handling, user feedback
 - ✅ **Data Persistence**: LocalStorage, SessionStorage, IndexedDB
+- ✅ **Memory Management**: Leak detection, performance monitoring
 
 ## 📁 Test Structure
 
 ```
 e2e/
-├── comprehensive-production.spec.ts  # Main comprehensive test suite
-├── individual-pages.spec.ts         # Page-specific functionality tests  
-├── cross-browser.spec.ts           # Browser compatibility tests
-├── navigation.spec.ts              # Navigation and routing tests
-├── explorer.spec.ts                # Explorer functionality tests
-└── realnet-integration.spec.ts     # Real network integration tests
+├── comprehensive-production.spec.ts      # Main comprehensive test suite
+├── individual-pages.spec.ts             # Page-specific functionality tests  
+├── cross-browser.spec.ts               # Browser compatibility tests
+├── navigation.spec.ts                  # Navigation and routing tests
+├── explorer.spec.ts                    # Explorer functionality tests
+├── realnet-integration.spec.ts         # Real network integration tests
+├── visual-regression.spec.ts           # NEW: Visual consistency testing
+├── advanced-performance.spec.ts        # NEW: Performance monitoring
+├── mobile-ux-enhancement.spec.ts       # NEW: Mobile UX validation
+└── comprehensive-error-boundary.spec.ts # NEW: Error handling testing
 ```
 
 ## 🚀 Running Tests
@@ -51,15 +64,31 @@ e2e/
 # Run all comprehensive tests against production
 npm run test:comprehensive
 
-# Run specific test suites against production
-npm run test:comprehensive-production
-npm run test:individual-pages  
-npm run test:cross-browser
+# Run specific enhanced test suites
+npm run test:visual-regression
+npm run test:performance  
+npm run test:mobile-ux
+npm run test:error-boundary
 
 # Run all production tests together
 npm run test:production-all
 ```
 
+### Enhanced Test Categories (NEW)
+```bash
+# Visual regression testing
+npx playwright test e2e/visual-regression.spec.ts
+
+# Performance and Core Web Vitals
+npx playwright test e2e/advanced-performance.spec.ts
+
+# Mobile UX and responsive design
+npx playwright test e2e/mobile-ux-enhancement.spec.ts
+
+# Error boundary and recovery testing
+npx playwright test e2e/comprehensive-error-boundary.spec.ts
+```
+
 ### Focused Test Categories
 ```bash
 # Test accessibility compliance
@@ -105,6 +134,13 @@ export REALNET_TESTS="true"
 
 # Set specific device for testing
 export DEVICE_NAME="iPhone 12"
+
+# Enable visual regression testing
+export VISUAL_TESTING="true"
+
+# Performance budget configuration
+export PERFORMANCE_BUDGET_FCP="2500"
+export PERFORMANCE_BUDGET_LCP="4000"
 ```
 
 ### Test Configuration
@@ -114,51 +150,75 @@ The tests are configured in `playwright.config.ts`:
 - **Retries**: 2 retries on CI, 0 locally
 - **Browsers**: Chromium, Firefox, WebKit
 - **Devices**: Desktop, tablet, mobile variants
+- **Visual Testing**: Screenshot comparison with 0.3 threshold
+- **Performance Budgets**: Core Web Vitals monitoring
 
 ## 📊 Test Reports
 
-### HTML Reports
+### Enhanced HTML Reports
 After running tests, view detailed HTML reports:
 ```bash
 npx playwright show-report
 ```
 
+### Visual Regression Reports
+Visual testing generates comparison images:
+- Before/after screenshots
+- Diff highlighting
+- Theme consistency validation
+- Interactive state verification
+
+### Performance Reports
+Performance tests generate:
+- Core Web Vitals metrics
+- Memory usage analysis
+- Network optimization reports
+- Mobile performance benchmarks
+
 ### Screenshots
 All test failures and key interactions are automatically captured:
 - Saved to `/tmp/screenshots/`
-- Uploaded as GitHub Actions artifacts
+- Organized by test suite and device
 - Available in HTML reports
+- Visual regression comparisons
 
 ### Performance Metrics
 Tests capture and validate:
 - Page load times (< 15 seconds on production)
 - DOM Content Loaded (< 10 seconds)
 - First Paint / First Contentful Paint
+- Largest Contentful Paint
+- Cumulative Layout Shift
 - Memory usage patterns
+- Network resource optimization
 
 ## 🔧 GitHub Actions Integration
 
-### Automated Testing
-The comprehensive test suite runs automatically on:
-- **Push to main/master**: Full test matrix
-- **Pull Requests**: Comprehensive validation
-- **Daily Schedule**: Production health checks
-- **Manual Trigger**: On-demand testing
+### Enhanced CI Pipeline
+The comprehensive test suite runs automatically with:
+- **Matrix Testing**: Multiple browsers, devices, and shards
+- **Visual Regression**: Theme and component consistency
+- **Performance Monitoring**: Core Web Vitals tracking
+- **Mobile Testing**: Device-specific validations
+- **Error Recovery**: Comprehensive error scenario testing
 
 ### Test Matrix
 ```yaml
 Strategy:
   Browser: [chromium, firefox, webkit]  
   Shard: [1, 2, 3, 4]                  # Parallel execution
   Device: [iPhone 12, Pixel 5, iPad Pro, etc.]
+  TestSuite: [comprehensive, visual, performance, mobile, errors]
 ```
 
-### Artifacts
+### Enhanced Artifacts
 All test runs generate:
-- ✅ HTML test reports
-- ✅ Screenshot galleries  
-- ✅ Performance metrics
-- ✅ Error logs and debugging info
+- ✅ HTML test reports with visual comparisons
+- ✅ Performance metrics and budgets
+- ✅ Mobile UX analysis reports
+- ✅ Error recovery documentation
+- ✅ Cross-browser compatibility matrices
+- ✅ Screenshot galleries with diff visualization
 - ✅ Consolidated test summaries
 
 ## 🛡️ Quality Gates
@@ -168,44 +228,57 @@ All tests must pass for production deployment:
 
 1. **Functionality**: All user flows work end-to-end
 2. **Compatibility**: Works across all browsers and devices
-3. **Performance**: Loads within acceptable time limits
+3. **Performance**: Meets Core Web Vitals standards
 4. **Accessibility**: Meets WCAG guidelines
-5. **Internationalization**: All languages display correctly
-6. **Theming**: All themes apply correctly
+5. **Visual Consistency**: No regression in UI/UX
+6. **Mobile Experience**: Optimized for touch devices
 7. **Error Handling**: Graceful error recovery
 8. **Security**: Real crypto operations function properly
 
-### Test Coverage Requirements
+### Enhanced Test Coverage Requirements
 - ✅ **100% of user-facing pages** tested
 - ✅ **100% of critical user flows** validated
-- ✅ **11/11 themes** verified
-- ✅ **11/11 languages** tested
-- ✅ **6/6 viewport sizes** covered
-- ✅ **3/3 browsers** supported
+- ✅ **11/11 themes** verified visually
+- ✅ **11/11 languages** tested functionally
+- ✅ **6/6 viewport sizes** covered responsively
+- ✅ **3/3 browsers** supported fully
+- ✅ **Core Web Vitals** meet Google standards
+- ✅ **Mobile devices** optimized (5+ device types)
+- ✅ **Error scenarios** handled gracefully
 
 ## 🐛 Debugging Failed Tests
 
-### Local Debugging
+### Enhanced Local Debugging
 ```bash
 # Run specific test with browser visible
-npx playwright test e2e/comprehensive-production.spec.ts --headed --grep "wallet creation"
+npx playwright test e2e/visual-regression.spec.ts --headed --grep "theme consistency"
+
+# Debug performance issues
+npx playwright test e2e/advanced-performance.spec.ts --debug
 
-# Debug mode with inspector
-npx playwright test --debug
+# Mobile UX debugging
+npx playwright test e2e/mobile-ux-enhancement.spec.ts --headed --grep "iPhone"
 
-# Generate trace for analysis
-npx playwright test --trace on
+# Error boundary testing
+npx playwright test e2e/comprehensive-error-boundary.spec.ts --debug
 ```
 
 ### CI/CD Debugging
-1. **Download artifacts** from failed GitHub Actions run
-2. **View HTML reports** in browser
-3. **Examine screenshots** for visual issues
-4. **Check console logs** in test output
-5. **Analyze performance metrics** if available
+1. **Download enhanced artifacts** from failed GitHub Actions run
+2. **View detailed HTML reports** with visual comparisons
+3. **Examine performance metrics** and budget violations
+4. **Review mobile UX analysis** reports
+5. **Check error recovery logs** and screenshots
+6. **Analyze cross-browser compatibility** matrices
 
 ## 📈 Performance Benchmarks
 
+### Core Web Vitals Standards (NEW)
+- **First Contentful Paint (FCP)**: < 2.5 seconds
+- **Largest Contentful Paint (LCP)**: < 4.0 seconds
+- **Cumulative Layout Shift (CLS)**: < 0.1
+- **First Input Delay (FID)**: < 100ms
+
 ### Expected Performance (Production)
 - **Initial Page Load**: < 15 seconds
 - **DOM Content Loaded**: < 10 seconds  
@@ -214,6 +287,13 @@ npx playwright test --trace on
 - **Theme Switching**: < 1 second
 - **Navigation**: < 3 seconds between pages
 
+### Mobile Performance Standards (NEW)
+- **Touch Response Time**: < 100ms
+- **Scroll Performance**: 60fps minimum
+- **Memory Usage**: < 50MB on mobile devices
+- **Network Efficiency**: < 3MB initial load
+- **Battery Impact**: Optimized animations and processes
+
 ### Memory Usage
 - **Initial Load**: < 50MB JavaScript heap
 - **After Navigation**: No significant memory leaks
@@ -222,38 +302,45 @@ npx playwright test --trace on
 
 ## 🔄 Continuous Improvement
 
-### Test Maintenance
-- **Weekly**: Review and update test assertions
-- **Monthly**: Add new test scenarios for new features
-- **Quarterly**: Performance benchmark updates
-- **Per Release**: Full test suite validation
+### Enhanced Test Maintenance
+- **Weekly**: Review visual regression reports and update baselines
+- **Monthly**: Add new test scenarios for new features and mobile devices
+- **Quarterly**: Performance benchmark updates and mobile UX audits
+- **Per Release**: Full test suite validation with enhanced coverage
 
-### Monitoring
-- **Daily**: Automated production health checks
-- **Real-time**: Error rate monitoring
-- **Weekly**: Performance trend analysis
-- **Monthly**: Cross-browser compatibility reports
+### Advanced Monitoring
+- **Daily**: Automated production health checks with enhanced metrics
+- **Real-time**: Error rate and performance monitoring
+- **Weekly**: Mobile UX and accessibility trend analysis
+- **Monthly**: Cross-browser compatibility and visual consistency reports
 
 ---
 
 ## 🤝 Contributing
 
 When adding new features to SVMSeek Wallet:
 
-1. **Add E2E tests** for all new user-facing functionality
-2. **Update existing tests** if UI/UX changes affect them
-3. **Test all themes/languages** if changes affect styling/text
-4. **Verify cross-browser compatibility** for new features
-5. **Document test scenarios** in this README
-
-### Test Writing Guidelines
+1. **Add comprehensive E2E tests** for all new user-facing functionality
+2. **Include visual regression tests** for any UI/UX changes
+3. **Add performance tests** for features that might impact Core Web Vitals
+4. **Create mobile-specific tests** for touch interactions and responsive design
+5. **Test error scenarios** and recovery mechanisms
+6. **Update existing tests** if UI/UX changes affect them
+7. **Test all themes/languages** if changes affect styling/text
+8. **Verify cross-browser compatibility** for new features
+9. **Document test scenarios** in this README
+
+### Enhanced Test Writing Guidelines
 - ✅ **No mocking**: Test real production functionality
-- ✅ **User-focused**: Test from end-user perspective  
-- ✅ **Comprehensive**: Cover happy path and edge cases
-- ✅ **Reliable**: Avoid flaky tests with proper waits
-- ✅ **Maintainable**: Use page objects and helpers
-- ✅ **Documented**: Clear test descriptions and comments
+- ✅ **User-focused**: Test from end-user perspective with real devices
+- ✅ **Comprehensive**: Cover happy path, edge cases, and error scenarios
+- ✅ **Performance-aware**: Include Core Web Vitals and mobile optimization
+- ✅ **Visually-validated**: Ensure UI consistency across themes and devices
+- ✅ **Accessible**: Validate WCAG compliance and assistive technology support
+- ✅ **Reliable**: Avoid flaky tests with proper waits and error handling
+- ✅ **Maintainable**: Use page objects, helpers, and clear documentation
+- ✅ **Mobile-optimized**: Test touch interactions and responsive behavior
 
 ---
 
-*This comprehensive E2E test suite ensures SVMSeek Wallet delivers a high-quality, accessible, and secure experience across all supported platforms and devices.*
+*This enhanced comprehensive E2E test suite ensures SVMSeek Wallet delivers a high-quality, accessible, performant, and secure experience across all supported platforms, devices, and user scenarios.*